Fullstack Software Engineer RoR/JS (f/m)

Pennylane

Software Engineer • Remote • Full-time • France

All France, France

📄 View original listing (EN)

Pennylane is a fast-growing French fintech building a financial Operating System for SMEs and accounting firms. As a full-stack engineer you join the Growth Team within the Marketing website squad, working with the growth engineer team lead. Your main mission focuses on global scaling, intelligent automation and high-velocity experimentation to optimize acquisition and conversion across markets.

Stack

Git GitHub JavaScript LLM Looker Nuxt PostgreSQL Ruby Ruby on Rails Vue

Responsibilities

▹Build and refine infrastructure supporting internationalization (multi-language, localized user journeys)
▹Design and deploy AI-driven tools and automated workflows to streamline lead acquisition
▹Implement and enhance visitor tracking systems to turn raw data into growth levers
▹Design and develop robust APIs for seamless data flow with the fintech ecosystem
▹Launch high-velocity projects: A/B tests, white-label integrations, predictive lead scoring, optimized funnels
▹Maintain and optimize the public website and registration funnels for peak conversion

Requirements

▹At least 2+ years of professional experience as a Software Engineer
▹Mastery of Ruby on Rails
▹Ability to leverage AI tools (LLMs, Copilots) and automation to work faster
▹Fluent in French and English (B2/C1)
▹Adaptability to an ever-shifting startup environment

Nice to have

▹Proficiency in a JS framework (Vue/Nuxt)
▹German language skills

Soft skills

Efficiency obsessionStrong communicationAdaptabilityCollaboration with diverse stakeholders (Data, Sales, Marketing)

What we offer

▹Strong remote-friendly culture (30% of employees work across Europe)
▹Trust, proactivity and autonomy-driven work environment

Languages: francia, angol, német

📅 Running for a while

• Posted 54 days ago
📋 This employer: 100% freshly verified (≤3 days) (9 active listings)

These signals come from our own daily check: when the listing appeared, and when we last saw it in the source. Not information from the employer, and not a guarantee that the role is still open.

Salary range

Not specified

Listing imported from an external source.

Work typeRemote

Location

All France, FR

TypeJob

Apply →

This listing appeared on the employer's own site — open on the employer's site

🗺️ View on the map

More jobs at Pennylane

All at this company (8) →

This listing comes from the employer's public careers page; the advertiser is responsible for its content. The summary is a machine-generated extract — check the original posting before applying.

Is this your company's listing? Request removal